Colo. Rev. Stat. § 18-1.3-1207
The executive director of the department of corrections or his or her designee shall keep a book of record, to be known as record of executions, in which shall be entered the reports specified in this section. Immediately after the execution, a postmortem examination of the body of the convict shall be made by the attending physician, who shall enter in said book of record the nature and extent of the examination and sign and certify to the same. The executive director or his or her designee shall also immediately make and enter in said book a report, setting forth the time of such execution and that the convict (naming him or her) was then and there executed in conformity to the sentence specified in the warrant of the court (naming such court) to him or her directed and in accordance with the provisions of this part 12, and shall insert in said report the names of all the persons who were present and witnessed the execution, and shall procure each of such persons to sign said report with his or her full name and place of residence before leaving the place of execution. The executive director or his or her designee shall thereupon attach his or her certificate to said report, certifying to the truth and correctness thereof, and shall immediately deliver a certified transcript of the record entry to the court which sentenced the convict.
C.R.S. § 18-1.3-1207
This section is similar to former § 16-11-405 as it existed prior to 2002.